Water distilling unit



FIG. 1 is a top, front, right side perspective view of a water distilling unit showing our new design;

FIG. 2 is a top, rear, left side perspective view thereof;

FIG. 3 is a front elevational view thereof; and

FIG. 4 is a rear elevational view thereof on an enlarged scale. 

The ornamental design for a water distilling unit, as shown and described. 